你还在为高中英语学习而苦恼吗?别担心，看了“高一英语学习：三四单元重难点句型归纳三”以后你会有很大的收获：

高一英语学习：三四单元重难点句型归纳三

5. ... she heard a loud noise，which grew to a terrible roar. ……她听见了很响的声音，接着就变成了可怕的隆隆轰鸣声。

该句中的which引导非限制性定语从句。例如：He bought some reference books, which were all about science. 他买了许多的参考资料.都是有关理科的。

which 作为关系代词.既可以引导限制性定语从句，也可以引导非限制性定语从句。例如：The train which left for Beijing pulled in on time. 前往北京的火车按时进站了。His dog, which was now very old, became ill and died.他的狗，现在老了，生病死了。

【考例】(2005浙江) Jim passed the driving test, ____ surprised everybody in the office.

A. which B. that C. this D. it

[考查目标]非限制性定语从句。

[答案与解析]A which引导非限制性定语从句。指代

前面整个句子。that不能引导非限制性定语从句。

☆句型诠释☆

现在进行时的用法(is / am / are + doing)

1. 表示现在(说话的瞬间)正在进行或发生的动作。 Look! The monkey is climbing the banana tree.

2. 表示当前一段时间内的活动或现阶段正在进行的动作。(说话时动作不一定正在进行。) We are preparing for the meeting to be held next Friday now.

3. 表示说话人现在对主语的行为表示赞叹、惊讶、厌恶等。(常与always, constantly, continually, all the time, forever 等副词连用)，表反复的动作。He is always think- ing of others. (表赞许) She is always asking the same question. (表厌恶) You are always changing your mind. (表抱怨)

4. 表示在最近计划或安排要进行的动作。常用于go, come, leave, start, arrive, return, work, stay 等表移动、方向的动词。He is starting the work in a few minutes. / He is leaving for Beijing tomorrow morning.

通过阅读“高一英语学习：三四单元重难点句型归纳三”这篇文章，小编相信大家对高中英语的学习又有了更进一步的了解，希望大家学习轻松愉快!

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